Bearing



July 21, 1936. DlEHL 2,048,324

BEARING Filed March 19, 1934 Patented 2 1, 1936- UNITED STATES PATENT OFFICE Bananas Nell DiehL-DouglasQWyor Application March 19,1934; s same. 716,359 a 1 oi iii .:308J#187)" This invention aims to provides, novel connec tion between a pitman andfa rotatable member, such as a fly wheel or crank disk,the device being of peculiarly effective. use on a mower or other agricultural implement, although 'the device not confined torthat use. a

The invention aims to provide novel means for' housing the bearings, for lubricating them, and, generally, to improve and enhance, the utility' oif devices of that type to which the invention apper- I ".ofi the part 9 of the wrist pin 4 by any suitable means,xsuch as'a lock nut 24' threaded on the tains.

,Although a preferred form of the inventionv has 1 been shown, a skilled mechanic, :workingwithinthe scope of what is claimed, mammake changes,

without departing from the spirit of the invention. 'In the drawing; I f p Fig. 1 shows in section,,a device-constructed in accordance with the invention;

Fig. 2 is a section on the line 2-2 of Fig. 1.

The numeral l marks a rotatablemembnjsuch as a fly wheel 'or disk. The rotatable member-l is provided near to its periphery with a bore 2 There is a slot 3in the rotatable member I, and the slot 3 communicates with the-bore 2.

The numeral 4 marks a wrist pin.v Thewrist pin 4 includes a body 5 having a head-6, a reduced intermediate portion 1 defining a shoulder 8, and a threadedend 9. The body 5 of the wrist pin 4 is received in the bore 2 of the rotatable member I. The shoulder 8 is approximately flush with the inner surface of the rotatable member I. A key I0 is mounted'in the slot 3 of the rotatable member and engages the body 5 of the wrist pin 4 to hold the wrist pin against rotation. The key In is held in the slot 3 by the head 6 of the wrist pin 4. vAspacing washer surrounds the intermediate portion 1' of the wrist pin 4 and abuts against the shoulder 8;

The numeral l2 marks a barrel. The barrel |2 has an inner recess l4, an outer recess I5, and

a lubricant chamber |6 between the recesses. In the walls of the chamber l6 there are openings I! leading, respectively, to the recesses I4 and I5, the openings I! being somewhat greater in diameter than the parts 9 and I of the wrist pin.

A thrust bearing 34, which may be a ball bearing, is removably mounted in the inner recess l4 of the barrel l2 and is disposed about the intermediate portion 1 of the wrist pin 4. The thrust bearing 34 thus is engaged with the spacing washer H, which, in its turn, is engaged with the shoulder 8 on the wrist pin.

A first race I8 is mounted in the outer recess l5 Y' ofthe barreljl2. The first race Ill has a conical inner surface" |9.- A second race 2|.I'is threaded jont'hepart'll, ofthe' wrist 3 pin ,4 and-is-located V r withinjthefirst race l8, The second race'2ll has v, qaconical outersurface 35. A roller. bearing 2| is 5 "(interposed between the surface IQ of the race l8 I j and'the surface 35 of the race 20. The roller bearing 2| is held on the second race 2|! by spaced annular shoulders22 and 23 on the said race. v The second race 2|l is prevented from threading partapf the wrist pin. l l cap ZS isthreaded on the outerend 'of the barrell2. Thecapl25 carries means 25 :for the 15 admission of a lubricant; 'unclerpressure]. The cap 25 is provided at'itsouterend with a wrench head :21, whereby I the cap can be conveniently threaded on and ofi the barrel. The numeral 28 designates a pitman. Any 20 suitable means, may be supplied for [securing the barrel l2 to the pitman 28. If desired. side plates 29 may be attached by, securing members 30, such as bolts, to the inner end of the pitman 28. The side plates 29 may be provided with inwardly-ex- 25 tended conical projections'3|,.received in correspondingly shaped seats 32, formed in an extension 33 on the barrel l2. v The bearing 34 cares for the thrust, and the roller bearing 2| facilitates rotation of the barrel 30 I2. The lubricant is forced into the cap 25 through the device shown at 26,and the bearing mately finding its way from the chamber I 6 to the thrust bearing 34.

The device forming the subject matterofthis application is advantageous over old style devices, in that it is dust proof, practically wear proof, and so'constructed that it will retain a sufiicient supply of oil to' last several days. It is obvious that looseness can be taken up by threading the race 20 toward therotatable member 45 and holding the race in its adjusted position by means of the lock nut 24 or its equivalent.

Having thus described the invention what is claimed is:

In a device of the class described, a barrel, a 50 pin in: the barrel, the barrel being provided intermediate its ends with inner and outer partitions extended transversely toward the axis of the barrelinto close but spaced relation to the pin. the, partitions being spaced from each other to define therebetween-an inner lubricant cham Ber" o maenmam ter' than length, thereby aflording' ample lubricant storage with a minimum length of barrel, the inner partition forming an inner recess in the extreme ,inner' end of the barrel, a ball thrust bearing receiving the pin and" mounted in 'theinn'er recess, inengagement with the inner pa'rtition, means, including a shoulder; on the pin and external to the barrel, for holding the ball thrust bearing in the inner recess, in

'eng'agementwith the inner partition, the outer partition 'forming anouter recess in the extreme outer endsof the barrel, a flrst race in the outer recess, in engagementwith the outer partition, 9.

second race within the-first race roller bearings of the pin, to form an outer lubricant chamber,

and means on the cap for admitting lubricant to the outer lubricant chamber.

NEIL DIEHL. 

